In accordance with Osaka baseball tradition, Hanshin Tigers fans jumped into the Dotonbori River to celebrate their team winning the Central League pennant.
Medical professionals have repeatedly warned against jumping into the bacteria-ridden river.
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Japanese media is reporting that 37 people jumped into the Dotonbori last night to celebrate the Hanshin Tigers' Japan Series victory. The tradition lives on, despite experts' warnings about the dirtiness of the river water.